Intelligent Light and FieldView

Parallel CFD Conference - Extract-based Workflows Enable & Accelerate Large Scale Production CFD

28th International Conference on Parallel Computational Fluid Dynamics, May 9-13, 2016, Kobe, Japan  

Extract-based Workflows to Enable and Accelerate Large Scale Production CFD 
Steve M. Legensky, Founder and General Manager, Intelligent Light

As scalable computing use accelerates, the rate at which data is being generated by CFD simulations exceeds the speed at which it can be written to disk, transferred, post-processed and analyzed. It has become difficult for engineers and researchers to gain understanding via visualization, exploration and collaboration. As a result, design alternatives are not tried, research questions are not asked and simulation complexity is reduced.  The true value of HPC enabled CFD is not realized.

Extracts created in situ present a solution to this otherwise intractable problem by vastly reducing the amount of data that is written, transferred and used for visualization and analysis. In sity methods have been maturing over the years with two open source tools, VisIt/libsim and ParaView/Catalyst becoming ad hoc standards for production-level in situ CFD. However, using these methods at peta-flop and exa-flop scales present the same challenges that most codes face in moving to these extreme scales.

Intelligent Light has been involved in developing and extending VisIt/libsim for in situ and extract-based post-processing and creating a more standardized, high performance infrastructure for in situ integration into solver codes. In this presentation Steve Legensky will provide an overview of the current scaling research utilizing the Georgia Tech AVF-LESLIE reactive flow multiphysics code on large scale systems at DOE's NERSC and the TITAN system at the Oak Ridge Leadership Class Compute facility. On TITAN, over 130,000 cores were used for the solver and integrated in situ processing. 

In addition, benchmark results for production engineering examples in aerospace will be presented.

Speaker Biography
Steve M. Legensky is the founder and general manager of Intelligent Light, a company that has delivered products and services based on visualization technology since 1984. He attended Stevens Institute of Technology in Hoboken, New Jersey and received a BE degree in electrical engineering in 1977 and a MS degree in mathematics in 1979. Steve's passion is applying computer graphics and data management to difficult engineering problems. Steve is an Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA) and has published and presented for AIAA, IEEE, ACM/SIGGRAPH and IDC.
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